Exactly. Where is the land in Navi Mumbai ?
Reg. timeframe, there is so much paperwork and feasibility studies that itself would take years. Right now there is no estimate according to me!

I distinctively remember that Rudy had once said there is no need for another airport in Mumbai and that the present one after modernization would be able to handle the load.
Do plans change alongwith the government ?

"You don't have to be crazy to be in aviation, but it helps", JRD Tata